ERROR! unable to open file: ~ (all file not open)

New member

The first error was this. (Picture)
When I tried to edit and save the mp4 file, the h264 error window popped up and I could not save it.

So I deleted videoredo and reinstalled videoredo..............
(The version I am using is ver4.20.7.635 (VideoReDo-TVSuite4))

However, after I reinstalled the program,
Everytime I try to open a file, I get an error message that says only 'unable to open file'. The file does not open.
mp4, ts, tp .... All files can not be opened. (Before reinstalling, all the files were opened in videoredo.)